초록 ▼

An injection apparatus has a medicament container whose hollow interior is subdivided by a partition into a medicament compartment housing a body of the liquid medicament and a pressurizable compartment. A positive-displacement pump has an intake connected via a conduit to the medicament compartment

An injection apparatus has a medicament container whose hollow interior is subdivided by a partition into a medicament compartment housing a body of the liquid medicament and a pressurizable compartment. A positive-displacement pump has an intake connected via a conduit to the medicament compartment and is operable to pass a liquid from this intake to its output. A needle is provided on the output so that when implanted in a person this pump can be used to inject a predetermined carefully metered quantity of the medicament into the person.

대표청구항 ▼

An injecting apparatus comprising a medicament container having a hollow interior adapted to contain a body of a liquid medicament; a positive-displacement pump having an intake and an output and operable to pass a liquid from said intake to said output; a conduit connecting said intake to said cont

An injecting apparatus comprising a medicament container having a hollow interior adapted to contain a body of a liquid medicament; a positive-displacement pump having an intake and an output and operable to pass a liquid from said intake to said output; a conduit connecting said intake to said container; means for forcing said medicament through said conduit from said container to said intake; a hollow injecting needle connected to said output; means for operating said pump and thereby feeding a predetermined quantity of said medicament to said needle, whereby when said needle is implanted in a patient said quantity is injected into such patient; and a partition subdividing said interior into a medicament compartment holding said body of medicament and a pressurizable compartment, said partition being movable in said container to increase the volume of said pressurizable compartment and decrease the volume of said medicament compartment, said means for forcing including means for pressurizing said pressurizable compartments with a gas.